210000133 has 12 divisors (see below), whose sum is σ = 258656652. Its totient is φ = 169411200.

The previous prime is 210000113. The next prime is 210000139. The reversal of 210000133 is 331000012.

It can be written as a sum of positive squares in 2 ways, for example, as 66048129 + 143952004 = 8127^2 + 11998^2 .

It is not a de Polignac number, because 210000133 - 2¹³ = 209991941 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210000139) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 125218 + ... + 126883.

It is an arithmetic number, because the mean of its divisors is an integer number (21554721).

Almost surely, 2^210000133 is an apocalyptic number.

It is an amenable number.

210000133 is a deficient number, since it is larger than the sum of its proper divisors (48656519).

210000133 is a wasteful number, since it uses less digits than its factorization.

210000133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 252132 (or 252125 counting only the distinct ones).

The product of its (nonzero) digits is 18, while the sum is 10.

The square root of 210000133 is about 14491.3813351247. The cubic root of 210000133 is about 594.3923207591.

Adding to 210000133 its reverse (331000012), we get a palindrome (541000145).

The spelling of 210000133 in words is "two hundred ten million, one hundred thirty-three", and thus it is an aban number.